j-curve
100+ Head-Fier
- Joined
- Apr 15, 2002
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Here's an easy project for those times when a 6x6 matrix stepped attenuator is overkill. An inline volume control is handy when sharing a source or to reduce background hiss. It also helps you to get a good sound from sources which don't perform well at low volume settings.
Ideally, P1 would be a 50 or 100 Ohm dual-gang potentiometer and Rout would be unnecessary. However, low value pots are hard to find. I used P1=500 Ohms, Rout=56 Ohms.
The box was another nice find, a Taiwanese Zippy box which didn't break when drilled and came complete with neat little rubber feet to cover the screw holes.
Ideally, P1 would be a 50 or 100 Ohm dual-gang potentiometer and Rout would be unnecessary. However, low value pots are hard to find. I used P1=500 Ohms, Rout=56 Ohms.
The box was another nice find, a Taiwanese Zippy box which didn't break when drilled and came complete with neat little rubber feet to cover the screw holes.
